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Polymarket

Will Anthropic or OpenAI IPO first?

Live Polymarket oddsUpdated 02:30 UTCCloses 1 Jan 2028 (in 14 mo)

Chance of “Yes”

95%▲ 0.6 pts in 24h
Price over the last 7 days, in %
95%95%94%

Outcomes

OutcomeChance24h
Anthropic
95%▲ 0.6 pts
OpenAI
5%—

How this market resolves

This market will resolve to "Anthropic" if Anthropic completes an Initial Public Offering (IPO) before OpenAI completes an IPO by December 31, 2027, 11:59 PM ET, as confirmed by official company announcements and credible news sources. This market will resolve to "OpenAI" if OpenAI completes an Initial Public Offering (IPO) before Anthropic completes an IPO by December 31, 2027, 11:59 PM ET, as confirmed by official company announcements and credible news sources. This market will resolve 50-50 if: - Neither company completes an Initial Public Offering (IPO) by December 31, 2027, 11:59 PM ET; - Both companies complete an IPO on the same calendar date (ET); or - By December 31, 2027, 11:59 PM ET, both companies become unable to complete an IPO, including due to acquisition, merger, or absorption by an entity that is already publicly traded. The IPO refers to the first sale of stock by the listed company to the public on any recognized stock exchange. The resolution source for this market is a consensus of credible reporting.

Questions about this market

What are the odds for “Will Anthropic or OpenAI IPO first”?

On Polymarket, traders currently price “Yes” at 95% (as of 24 Oct 2026). The price of a share in cents is the market's implied probability.

What does the percentage mean?

A price of 62¢ means the market implies a 62% chance. A correct share pays $1 when the market resolves, an incorrect one pays nothing, so the price moves as traders update their expectations.

When does this market resolve?

The scheduled close is 1 Jan 2028. Markets can resolve earlier or later according to their rules, shown on this page.

Where can I trade it?

On Polymarket, where availability depends on your country. PredictDesk does not take bets: it shows live odds from Polymarket and Kalshi side by side.

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Odds are implied probabilities from Polymarket and change continuously; they may be delayed. PredictDesk is an information service, not a broker or exchange, and is not affiliated with Polymarket or Kalshi. Nothing here is financial advice. Prediction markets may not be available in your country.